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An ideal gas expands from an intial volu...

An ideal gas expands from an intial volume `V` into vacuume under isothermal conditions. For this process,

A

`DeltaUne 0,W=0` and `Qne 0`

B

`DeltaU ne 0,Wne 0` and `Q ne O`

C

`DeltaUne 0,Wne 0` and `Q= 0`

D

`DeltaU=0,W=0` and `Q=0`

Text Solution

Verified by Experts

The correct Answer is:
D
For an isothermal expansion of an ideal gas `DeltaU=0`
Since `P_(ext)` is zero in vacuum.
`W=-P_(ext)DeltaV=0`
`:. Q=0`
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